No problem! Vacuuming super regularly and hot washing/drying all the cloth in the house is what gets them too. (I’ve done some more today)

If you’re still struggling for a cat safe insecticide there’s the Frontline spray (out of stock at Petcircle but also a similar cheaper price at Budget Pet Products). Or there’s the Sundew flea control spray which I don’t use because scent and aerosol, and which doesn’t seem to be in pet shops anymore.